Top speed of 364.6 km/h is an amazing record for a family saloon like the Audi A4, but in this case it’s truly astonishing because this Audi A4 runs on bio-gas! So not only Mr. Jürgen Hohenester made his way to the Guinness book, he proved that natural gas can be as good, if not better, as the petrol!

In fact Hohenester’s bio-gas Audi is so pwerful they had to delibrately limit it at 700 hp to stop it from ripping the transmission and other components apart! Without the limiter they managed to extract 800 hp out of the Audi’s 3.0 liter V6!! Of course the gas they put in this engine has octane number of 120 to 140!

This is not the first time that Hohenester tries to brake the speed record for gas-powered cars. In 2008 he had prepared another Audi A4 with 585 hp, pictured below, but that only managed 327 km/h.

via: AMS